I'm having a similar problem.

I'm playing a good version of Thog.
My party is playing an evil version of: Achilles, Alexander the Great, Jesus, and Peter Pan.

They're currently trying to take over a village, kill their men, steal their women and enslave their children. Thog, who in our game has just left his Mommy and is currently 15, and is not happy with the subjugating, murdering, and pillaging.

I don't want to have to kill them all.

It's also frustrating me because I think the whole thing reeks of shallow "Muahahaha, we're EVIL!!!! Muahahahahaha!" There is no benefit in this. The women and children are all going to ONE of the player's tribe. The others are doing this.... for no reason.

We've only met each other a week ago. We're risking our lives and our mission (given to us by the closest thing the world has to gods) in order to help a prisoner we met in a camp last week to get brownie points for when he tries to take over a tribe.

My problem differs also in that I could actually just kill the whole party... they're not *that* tough.